Attempting to backtrace in a simple helloworld app. For the simple app, we are just using the source of the example from man backtrace. We SEEM to be running into an infinite loop around line 296 of file dlso/dlso/dl-hash.c in which there is a loop that (again) SEEMS to walk off into oblivion. BTW, this is the 0.9.33.2 packaged version, if it is fixed later, I don't know it.
What we are attempting to do is source level debug (from gdbserver running on a p1014 target) uClibc. I'm using CrossTool-NG to build the toolchain. I've hacked up CTNG to REMOVE the sed scripts that remove the debug information settings in my .config file. Setting the following flags: DODEBUG=y # DOASSERTS is not set SUPPORT_LD_DEBUG=y ends in a build failure in which it appears that one of the .a libs is attempting to link against libgcc_s.so.1 (which contains _Unwind_Backtrace and (I think) _Unwind_Resume. This won't work so good since these are not available static. Here is the error I get: /usr/bin/make -C extra/locale locale_headers make[3]: Nothing to be done for `locale_headers'. true -x -R .note -R .comment libc/libc_so.a rm -f lib/libc.so lib/libc.so.0 lib/libuClibc-0.9.33.2.so powerpc-unknown-linux-uclibcgnuspe-gcc -Wl,-EB -shared -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -Wl,-init,__uClibc_init -Wl,-soname=libc.so.0 -nostdlib -o lib/libuClib c-0.9.33.2.so -Wl,--whole-archive libc/libc_so.a -Wl,--no-whole-archive ./lib/interp.os ./lib/ld-uClibc.so.0 ./lib/uclibc_nonshared.a /crap/cro sstool-ng-1.18.0/.build/powerpc-unknown-linux-uclibcgnuspe/buildtools/li b/gcc/powerpc-unknown-linux-uclibcgnuspe/4.7.2/libgcc.a libc/libc_so.a(lockf.os): In function `__GI_lockf': /crap/crosstool-ng-1.18.0/.build/powerpc-unknown-linux-uclibcgnuspe/buil d/build-libc/libc/misc/file/lockf.c:73: undefined reference to `_Unwind_ Resume' libc/libc_so.a(lockf.os):(.sdata.DW.ref.__gcc_personality_v0[DW.ref.__gc c_personality_v0]+0x0): undefined reference to `__gcc_personality_v0' collect2: error: ld returned 1 exit status make[1]: *** [lib/libc.so] Error 1 Is there an easy way to enable source level debugging so that we can work out the issues that dl_* are having with opening up the libgcc_s.so.1 file at run-time? Thanks in advance for any assistance you can give. Andy _______________________________________________ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc
